Optical probe of charge-spin-lattice dynamics in half-doped (formula presented)

K. Yamamoto*, K. Ishizaka, E. Saitoh, S. Shinomori, T. Tanabe, Takuro Katsufuji, Y. Tokura

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We have investigated the charge-spin-ordering transition in (formula presented) by measurements of Raman and optical conductivity spectra. The checkerboard-type charge ordering below (formula presented) can be probed by activated phonon (formula presented) and (formula presented) and two-magnon (formula presented) modes in the infrared and Raman spectra as well as by formation of pseudogaps in the optical conductivity spectra. Besides, another (formula presented) Raman mode emerges below 150 K together with reduction of the optical gap, which can be attributed to another ordering process, i.e., the stripe formation.

本文言語English
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
67
1
DOI
出版ステータスPublished - 2003 1月 1
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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